/*span{*/
    /*float: left;*/
    /*width: 12px;*/
    /*height: 12px;*/
    /*background-color: gray;*/
    /*border: 4px gray outset;*/
    /*visibility: hidden;*/
/*}*/
/*#chessboard{*/
    /*width: 240px;*/
    /*height: 400px;*/
    /*border: 12px solid #8a8a8a;*/
/*}*/
#chessboard{
    border-collapse:collapse;
}
tr{
    border:1px solid red;
    border-collapse:collapse;
}
td{
    width:15px;
    height:15px;
    border:1px solid grey;
}
